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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/**
 * @test
 * @summary
 * @requires os.family == "linux"
 * @key headful
 * @library /test/lib
 * @run main/othervm -Dsun.awt.wl.WindowDecorationStyle=builtin CloseOnlyDialogShownTest
 */
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import java.awt.Dimension;
import java.awt.Robot;
import java.util.concurrent.atomic.AtomicReference;

public class CloseOnlyDialogShownTest {

    public static void main(String[] args) throws Throwable {
        AtomicReference<Throwable> edtFailure = new AtomicReference<>();
        Thread.setDefaultUncaughtExceptionHandler((t, e) -> {
            if (SwingUtilities.isEventDispatchThread()) {
                edtFailure.compareAndSet(null, e);
                e.printStackTrace();
            }
        });

        AtomicReference<JDialog> holder = new AtomicReference<>();
        SwingUtilities.invokeAndWait(() -> {
            JDialog dialog = new JDialog((java.awt.Frame) null, "Close-only window", false);
            holder.set(dialog);
            dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
            dialog.add(new JLabel("This dialog should show with only a close button."));
            dialog.setMinimumSize(new Dimension(200, 120));
            dialog.setVisible(true);
        });

        Robot robot = new Robot();
        robot.waitForIdle();
        robot.delay(500);

        SwingUtilities.invokeAndWait(() -> {
            JDialog dialog = holder.get();
            if (dialog != null) {
                dialog.dispose();
            }
        });

        if (edtFailure.get() != null) {
            throw edtFailure.get();
        }
    }
}
